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A week in Shenzhen
Starting up production and doing the first batch of a product is always problematic, no matter how well you try to plan it. So just like for the Crazyflie 1.0, we decided to pack our bags and leave for...
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Hectic release week!
This week is going to be an exiting week! Crazyflie 2.0 has started to ship and we are pushing out a lot of code during the week. We wish that we would have gotten more time to work on the code before...
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New Crazyflie 2.0 firmware and updated Android client
The workload is still huge and now it is starting to take its toll, we are really looking forward to a short vacation around Christmas! But even though we will be off, we will still be checking the...
View ArticleExpansion board Architecture and Bluetooth firmware
It seems that many have received their Crazyflie 2.0 now. It is a very exciting time for us, tell us what you think about your Crazylie 2.0 and if you have any problems. We wish you Merry Christmas, a...
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Looking forward to 2015
Well its hard to believe that yet another year has passed. Maybe because it’s been such an hectic year for us at Bitcraze things has been moving so fast. It has not only been hectic but very exiting as...
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Crazyflie 2.0 radio communication
The Crazyflie 2.0 supports two types of radio protocols out of the box: ESB (Enhanced ShockBurst) for Crazyradio/Crazyradio PA USB dongle compatibility and Bluetooth LE for mobile devices. All...
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Measuring propeller RPM: Part 1
We have had numerous request to get a transfer function from the motor PWM output to propeller RPM. The next step would then be to get the propeller RPM to thrust transfer function as well. With that...
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Working on a new input device architecture
Today we were supposed to post the next part of the RPM measurements. But since we are’t finished with the analysis yet we thought that we would post some info on what we are working on. Since...
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Refocusing for 2015
During the last week there’s been lots of work, but we don’t have that much to show for it. We’ve spent a lot of time discussing what we should do during 2015. Last year there was a clear focus:...
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Measuring propeller RPM: Part 2
We finally got some time to follow up on the previous blog post Measuring propeller RPM: Part 1. In this post we will continue where we left of and describe a little about the software we have...
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Measuring propeller RPM: Part 3
Finally here is the last, and probably most interesting part of the “Measuring propeller RPM” series, see part 1 and part 2 to catch up. Now it is time to gather some data and display what we get. As...
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CCW propeller replacement
We have finally managed together with Seeedstudio to improve the CCW propellers and to setup a process to acquire a free set of CCW replacement props. As continuing from this post we have discovered...
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Input-device MUX
When the schools closed for vacation last week Minc (the company accelerator where we have our office) hosted a “bring-your-children-to-work” day. The original idea came from Fredrik who works at the...
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Crazyflie 2.0 decks
Some time ago we decided that it would be nice to have a name for the Crazyflie expansion boards, a bit like the Arduino shields or the Beagle bone capes. We organized a poll on our website, that ended...
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Modular Crazyflie client with ZeroMQ
Lately we have merged a new input subsystem to the Crazyflie python client, it allows for more flexible input configuration like connecting more than one gamepad in training mode, or having external...
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Crazyflie 2.0: Building a buzzer deck
While digging around in our office looking for a board we found a piezo buzzer we bought a while back. The reason for buying it was to test some buzzer functionality to the Crazyflie 2.0, but we forgot...
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DeviationTX and the Crazyflie
As many out there think is is more fun to fly the Crazyflie rather then develop upon it (like we do :-)) we have quickly looked at ways to pilot it with a RC transmitter. This forum thread is a good...
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Arduino day 2015 and Crazyflie glove controller
Last Saturday it was Arduino day 2015 and it happens that the Arduino office in Sweden is in the same building as ours. So we where invited and presented Crazyflie. It was a really fun event with a lot...
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“Monday post” on a Tuesday?
When we were developing the Crazyflie, going from our hackish prototype to a production version, we decided to start posting a blog-post every week. Back then we always used to meet after work on...
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Crazyflie client Chrome app
Recently I got a Chromebook, mostly out of curiosity for this odd “computer that runs only a web browser”. While playing with Google dev tools I quickly saw a possibility to make a Crazyflie client as...
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